70312323031 has 16 divisors (see below), whose sum is σ = 72341950464. Its totient is φ = 68306760864.

The previous prime is 70312323007. The next prime is 70312323047. The reversal of 70312323031 is 13032321307.

It is a cyclic number.

It is not a de Polignac number, because 70312323031 - 2⁷ = 70312322903 is a prime.

It is a super-2 number, since 2×70312323031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70312322987 and 70312323005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70312323931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627241 + ... + 3646573.

It is an arithmetic number, because the mean of its divisors is an integer number (4521371904).

Almost surely, 2^70312323031 is an apocalyptic number.

70312323031 is a deficient number, since it is larger than the sum of its proper divisors (2029627433).

70312323031 is a wasteful number, since it uses less digits than its factorization.

70312323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19950.

The product of its (nonzero) digits is 2268, while the sum is 25.

Adding to 70312323031 its reverse (13032321307), we get a palindrome (83344644338).

The spelling of 70312323031 in words is "seventy billion, three hundred twelve million, three hundred twenty-three thousand, thirty-one".